Leigh's Notes:- The pan fits exactly 18 shells: two rows of 7, and 4 shells sideways down the middle. So don't just dump the box in the water! Count, people!- I bought a rotisserie chicken pre-cooked from the store and used half of it in this recipe and will use half in enchiladas later in the week. If I hadn't done that, I assume 2 breasts roughly equal 2 cups.- This tastes VERY spinachy. If you don't love spinach, skip this one.